ENH: Added INSTALL(CODE) mode to allow inline specification of install script code. This reduces the need for configuring an install script that needs some variable settings because the install code can set thing up first.

Source/cmInstallCommand.cxx

@@ -35,6 +35,10 @@ bool cmInstallCommand::InitialPass(std::vector<std::string> const& args)
     {
     return this->HandleScriptMode(args);
     }
+  else if(args[0] == "CODE")
+    {
+    return this->HandleScriptMode(args);
+    }
   else if(args[0] == "TARGETS")
     {
     return this->HandleTargetsMode(args);
@@ -59,11 +63,18 @@ bool cmInstallCommand::InitialPass(std::vector<std::string> const& args)
 bool cmInstallCommand::HandleScriptMode(std::vector<std::string> const& args)
 {
   bool doing_script = false;
+  bool doing_code = false;
   for(size_t i=0; i < args.size(); ++i)
     {
     if(args[i] == "SCRIPT")
       {
       doing_script = true;
+      doing_code = false;
+      }
+    else if(args[i] == "CODE")
+      {
+      doing_script = false;
+      doing_code = true;
       }
     else if(doing_script)
       {
@@ -83,12 +94,24 @@ bool cmInstallCommand::HandleScriptMode(std::vector<std::string> const& args)
       this->Makefile->AddInstallGenerator(
         new cmInstallScriptGenerator(script.c_str()));
       }
+    else if(doing_code)
+      {
+      doing_code = false;
+      std::string code = args[i];
+      this->Makefile->AddInstallGenerator(
+        new cmInstallScriptGenerator(code.c_str(), true));
+      }
     }
   if(doing_script)
     {
     this->SetError("given no value for SCRIPT argument.");
     return false;
     }
+  if(doing_code)
+    {
+    this->SetError("given no value for CODE argument.");
+    return false;
+    }
   return true;
 }
 

Source/cmInstallCommand.h

@@ -156,12 +156,16 @@ public:
       "such as shell scripts.  Use the TARGETS form to install targets "
       "built within the project."
       "\n"
-      "The SCRIPT signature:\n"
-      "  INSTALL(SCRIPT <file1> [SCRIPT <file2> [...]])\n"
+      "The SCRIPT and CODE signature:\n"
+      "  INSTALL([[SCRIPT <file>] [CODE <code>]] [...])\n"
       "The SCRIPT form will invoke the given CMake script files during "
       "installation.  If the script file name is a relative path "
-      "it will be interpreted with respect to the current source directory."
-      "\n"
+      "it will be interpreted with respect to the current source directory.  "
+      "The CODE form will invoke the given CMake code during installation.  "
+      "Code is specified as a single argument inside a double-quoted string.  "
+      "For example, the code\n"
+      "  INSTALL(CODE \"MESSAGE(\\\"Sample install message.\\\")\")\n"
+      "will print a message during installation.\n"
       "NOTE: This command supercedes the INSTALL_TARGETS command and the "
       "target properties PRE_INSTALL_SCRIPT and POST_INSTALL_SCRIPT.  "
       "It also replaces the FILES forms of the INSTALL_FILES and "

Source/cmInstallScriptGenerator.cxx

@@ -18,7 +18,8 @@
 
 //----------------------------------------------------------------------------
 cmInstallScriptGenerator
-::cmInstallScriptGenerator(const char* script): Script(script)
+::cmInstallScriptGenerator(const char* script, bool code):
+  Script(script), Code(code)
 {
 }
 
@@ -31,5 +32,12 @@ cmInstallScriptGenerator
 //----------------------------------------------------------------------------
 void cmInstallScriptGenerator::GenerateScript(std::ostream& os)
 {
-  os << "INCLUDE(\"" << this->Script << "\")\n";
+  if(this->Code)
+    {
+    os << this->Script << "\n";
+    }
+  else
+    {
+    os << "INCLUDE(\"" << this->Script << "\")\n";
+    }
 }

Source/cmInstallScriptGenerator.h

@@ -25,12 +25,13 @@
 class cmInstallScriptGenerator: public cmInstallGenerator
 {
 public:
-  cmInstallScriptGenerator(const char* script);
+  cmInstallScriptGenerator(const char* script, bool code = false);
   virtual ~cmInstallScriptGenerator();
 
 protected:
   virtual void GenerateScript(std::ostream& os);
   std::string Script;
+  bool Code;
 };
 
 #endif

Tests/SimpleInstall/CMakeLists.txt

@@ -122,6 +122,7 @@ ELSE(STAGE2)
   # Test user-specified install scripts.
   INSTALL(
     SCRIPT InstallScript1.cmake
+    CODE "SET(INSTALL_CODE_DID_RUN 1)"
     SCRIPT ${CMAKE_CURRENT_SOURCE_DIR}/InstallScript2.cmake
     )
   SET_DIRECTORY_PROPERTIES(PROPERTIES

Tests/SimpleInstall/InstallScript1.cmake

@@ -1,2 +1,5 @@
 MESSAGE("This is install script 1.")
 SET(INSTALL_SCRIPT_1_DID_RUN 1)
+IF(INSTALL_CODE_DID_RUN)
+  MESSAGE(FATAL_ERROR "Install script 1 did not run before install code.")
+ENDIF(INSTALL_CODE_DID_RUN)

Tests/SimpleInstall/InstallScript2.cmake

@@ -4,6 +4,11 @@ IF(INSTALL_SCRIPT_1_DID_RUN)
 ELSE(INSTALL_SCRIPT_1_DID_RUN)
   MESSAGE(FATAL_ERROR "Install script 1 did not run before install script 2.")
 ENDIF(INSTALL_SCRIPT_1_DID_RUN)
+IF(INSTALL_CODE_DID_RUN)
+  MESSAGE("Install code ordering works.")
+ELSE(INSTALL_CODE_DID_RUN)
+  MESSAGE(FATAL_ERROR "Install script 2 did not run after install code.")
+ENDIF(INSTALL_CODE_DID_RUN)
 FILE(WRITE "${CMAKE_INSTALL_PREFIX}/MyTest/InstallScriptOut.cmake"
   "SET(CMAKE_INSTALL_SCRIPT_DID_RUN 1)\n"
   )

Tests/SimpleInstallS2/CMakeLists.txt

@@ -122,6 +122,7 @@ ELSE(STAGE2)
   # Test user-specified install scripts.
   INSTALL(
     SCRIPT InstallScript1.cmake
+    CODE "SET(INSTALL_CODE_DID_RUN 1)"
     SCRIPT ${CMAKE_CURRENT_SOURCE_DIR}/InstallScript2.cmake
     )
   SET_DIRECTORY_PROPERTIES(PROPERTIES

Tests/SimpleInstallS2/InstallScript1.cmake

@@ -1,2 +1,5 @@
 MESSAGE("This is install script 1.")
 SET(INSTALL_SCRIPT_1_DID_RUN 1)
+IF(INSTALL_CODE_DID_RUN)
+  MESSAGE(FATAL_ERROR "Install script 1 did not run before install code.")
+ENDIF(INSTALL_CODE_DID_RUN)

Tests/SimpleInstallS2/InstallScript2.cmake

@@ -4,6 +4,11 @@ IF(INSTALL_SCRIPT_1_DID_RUN)
 ELSE(INSTALL_SCRIPT_1_DID_RUN)
   MESSAGE(FATAL_ERROR "Install script 1 did not run before install script 2.")
 ENDIF(INSTALL_SCRIPT_1_DID_RUN)
+IF(INSTALL_CODE_DID_RUN)
+  MESSAGE("Install code ordering works.")
+ELSE(INSTALL_CODE_DID_RUN)
+  MESSAGE(FATAL_ERROR "Install script 2 did not run after install code.")
+ENDIF(INSTALL_CODE_DID_RUN)
 FILE(WRITE "${CMAKE_INSTALL_PREFIX}/MyTest/InstallScriptOut.cmake"
   "SET(CMAKE_INSTALL_SCRIPT_DID_RUN 1)\n"
   )